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All results from a given calculation for C4H6 (1-Methylcyclopropene)

using model chemistry: B3PW91/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-155.903909
Energy at 298.15K 
HF Energy-155.903909
Nuclear repulsion energy107.980900
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3278 3278 0.31 124.85 0.29 0.45
2 A' 3126 3126 16.48 84.76 0.72 0.83
3 A' 3028 3028 20.49 323.42 0.01 0.02
4 A' 3027 3027 95.57 118.27 0.23 0.37
5 A' 1871 1871 15.27 80.69 0.11 0.20
6 A' 1505 1505 5.00 9.96 0.32 0.48
7 A' 1454 1454 10.75 11.42 0.49 0.66
8 A' 1377 1377 0.19 7.88 0.50 0.67
9 A' 1198 1198 2.13 8.60 0.43 0.61
10 A' 1081 1081 10.80 7.21 0.15 0.26
11 A' 1056 1056 23.59 0.81 0.57 0.73
12 A' 982 982 9.32 7.12 0.17 0.29
13 A' 933 933 13.51 3.96 0.52 0.68
14 A' 685 685 1.01 14.98 0.56 0.72
15 A' 321 321 1.94 1.85 0.75 0.86
16 A" 3096 3096 0.50 87.77 0.75 0.86
17 A" 3094 3094 65.82 123.24 0.75 0.86
18 A" 1449 1449 8.71 5.67 0.75 0.86
19 A" 1103 1103 1.19 0.54 0.75 0.86
20 A" 1033 1033 0.10 2.02 0.75 0.86
21 A" 973 973 2.46 0.86 0.75 0.86
22 A" 695 695 34.03 1.47 0.75 0.86
23 A" 289 289 13.53 0.23 0.75 0.86
24 A" 165 165 0.44 0.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18409.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18409.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/daug-cc-pVDZ
ABC
0.68670 0.21153 0.17254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.180 0.000
C2 -0.060 -1.329 0.000
C3 1.151 -0.427 0.000
C4 -0.823 1.403 0.000
H5 -0.343 -1.863 0.918
H6 -0.343 -1.863 -0.918
H7 2.234 -0.389 0.000
H8 -0.200 2.307 0.000
H9 -1.478 1.424 -0.883
H10 -1.478 1.424 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51021.30111.47432.26542.26542.30482.13622.12412.1241
C21.51021.51032.83681.09861.09862.47893.63863.22013.2201
C31.30111.51032.69172.26632.26631.08323.04923.33413.3341
C41.47432.83682.69173.42613.42613.54301.09741.09991.0999
H52.26541.09862.26633.42611.83553.10704.27163.91583.4771
H62.26541.09862.26633.42611.83553.10704.27163.47713.9158
H72.30482.47891.08323.54303.10703.10703.63164.22384.2238
H82.13623.63863.04921.09744.27164.27163.63161.78671.7867
H92.12413.22013.33411.09993.91583.47714.22381.78671.7670
H102.12413.22013.33411.09993.47713.91584.22381.78671.7670

picture of 1-Methylcyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 51.031 H1 C2 C6 119.703
C2 C3 C6 24.881 C2 C3 C10 72.505
C2 C6 C3 35.337 C2 C6 H4 49.413
C2 C6 H5 33.347 C3 C2 C6 119.782
C3 C6 H4 51.678 C3 C6 H5 66.112
C3 C10 H7 9.445 C3 C10 H8 65.130
C3 C10 H9 74.634 H4 C6 H5 74.463
C6 C3 C10 86.514 H7 C10 H8 58.688
H7 C10 H9 77.926 H8 C10 H9 60.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.027      
2 C 1.721      
3 C 1.556      
4 C 0.334      
5 H -0.717      
6 H -0.717      
7 H -0.714      
8 H -0.277      
9 H -0.079      
10 H -0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.169 0.912 0.000 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.619 -0.717 0.000
y -0.717 -25.269 0.000
z 0.000 0.000 -25.735
Traceless
 xyz
x 1.882 -0.717 0.000
y -0.717 -0.592 0.000
z 0.000 0.000 -1.291
Polar
3z2-r2-2.581
x2-y21.649
xy-0.717
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.808 -0.608 0.000
y -0.608 8.256 0.000
z 0.000 0.000 5.741


<r2> (average value of r2) Å2
<r2> 80.613
(<r2>)1/2 8.978